A difference between marathon runners and sprinters is ______.

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A difference between marathon runners and sprinters is ______.

A difference between marathon runners and sprinters is ______.
A) marathon runners have more slow-twitch fibers in their leg muscles
B) marathon runners have more fast-twitch muscle fibers in their leg muscles
C) sprinters have a high proportion of muscle fibers that require oxygen to make ATP
D) sprinters perform better in activities that require slow, steady muscle activity

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mikael Author

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Thanks, you were right Smiling Face with Open Mouth

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